CN103559000A - Quality-oriented migration method and system for big image data - Google Patents
Quality-oriented migration method and system for big image data Download PDFInfo
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Abstract
The invention provides a quality-oriented migration method and system for big image data. The method comprises the steps as follows: a plurality of image data are saved in a shared memory area; a shooting quality grade is determined according to shooting quality of each image datum, and at the same time, product processing grades are determined according to processing processes of the image data; image data with the shooting quality grades and the product processing grades meeting requirements of threshold values simultaneously are stored in a working memory area; in the working memory area, optimal image data are selected and stored in a product memory area; in the product memory area, the optimal image data are selected and stored; and the image data in the product memory area are used for providing access. The invention provides the quality-oriented migration system for the big image data. For the big data, the processing efficiency during each processing operation is improved.
Description
Technical field
The present invention relates to field of data migration, in particular to a kind of magnanimity image data moving method and system towards quality.
Background technology
Mass data also can be described as large data (Big data), when the mass data processing in the face of such, conventionally needs a lot of platform computing machines to work simultaneously, far beyond user, in the acceptable time, mass data is being operated.
For example: the history image that camera is taken, the image that remote sensing satellite is taken etc., these data are along with the accumulation of time, can there are the data of repeating data or some inefficacies, in these data, some data are not all transferred in each access, and some data may be because of undesirable and never accessed.Depositing of these image datas, in follow-up processing, efficiency is very low.
Summary of the invention
The present invention aims to provide a kind of magnanimity image data moving method towards quality, slow to solve above-mentioned mass data access speed, the problem that treatment effeciency is low.
The invention provides a kind of magnanimity image data moving method towards quality, comprising: a plurality of image datas are kept to shared memory; By the shooting quality of each image data, determine its photographic quality grade, by the processing procedure of image data, determine its product treatment grade simultaneously; The image data of selecting described photographic quality grade and described product treatment grade simultaneously to meet threshold value is stored to working storage; In described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select optimum image data, be stored to product memory block; In described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select and preserve optimum image data; Use the image data in described product memory block, access is provided.
Preferably, will not meet the image data of threshold value or non-optimum, be stored to offline storage district.
Preferably, according to the memory capacity of the time interval or each memory block, trigger the operation of described selection image data.
Preferably, also comprise: before the current image data of operation, by setting up the label of corresponding described current image data, prevent operating collision.
Preferably, the described label of setting up corresponding described current image data prevents that operating collision from comprising: before the current image data of operation, judge under its place catalogue whether have empty file of the same name; If there is shut-down operation; If there is no, create the empty file of the same name with it, and operate this image data; After EO, delete the empty file described of the same name creating.
Preferably, the described shooting quality by each image data determines that its photographic quality grade comprises: access each image data as the attribute of shooting quality, it is one of following that described attribute at least comprises: resolution, size, pixel quantity, color, tone, saturation degree, contrast and brightness; According between the attribute area of setting with the corresponding relation of photographic quality grade, determine the photographic quality grade of each image data; The described processing procedure by image data determines that its product treatment grade comprises: determine the operation of described processing procedure, it is one of following that described operation comprises: image conversion, encoding and decoding, enhancing, restore, cut apart, the running time; According to the quantity of operation and the corresponding relation of product treatment grade set, determine the product treatment grade of each image data.
Embodiments of the invention also provide a kind of magnanimity image data migratory system towards quality, comprising: share module for reading and writing, for a plurality of image datas are kept to shared memory; Grade module for determine its photographic quality grade by the shooting quality of each image data, is determined its product treatment grade by the processing procedure of image data simultaneously; Work memory module, is stored to working storage for the image data of selecting described photographic quality grade and described product treatment grade to meet threshold value simultaneously; Workspace screening module, in described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects optimum image data, is stored to product memory block; Product zone screening module, in described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects and preserves optimum image data; Output module, for using the image data of described product memory block, provides access.
Preferably, also comprise: offline storage module, for not meeting the image data of threshold value or non-optimum, is stored to offline storage district.
Preferably, also comprise, trigger module, for triggering the operation of described selection image data according to the memory capacity of the time interval or each memory block.
Preferably, also comprise: anti-collision module, for before the current image data of operation, prevents operating collision by setting up the label of corresponding described current image data.
By above-mentioned steps, according to the product treatment grade of image and shooting quality grade, the image of mass data is constantly screened, thereby obtain the most applicable image that service is provided, solved in prior art, in the face of mass data, each processing while operating, inefficient problem.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the process flow diagram of embodiment;
Fig. 2 shows the process flow diagram of another embodiment;
Fig. 3 shows towards the system assumption diagram of the magnanimity image data migration of quality;
It is the overview flow chart towards the magnanimity image data migration of quality that Fig. 4 shows;
Fig. 5 shows the module rack composition of system embodiment.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
S11: a plurality of image datas are kept to shared memory;
S12: determine its photographic quality grade by the shooting quality of each image data, determine its product treatment grade by the processing procedure of image data simultaneously;
S13: the image data of selecting described photographic quality grade and described product treatment grade simultaneously to meet threshold value is stored to working storage;
S14: in described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select optimum image data, be stored to product memory block;
S15: in described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select and preserve optimum image data;
S16: use the image data in described product memory block, access is provided.
By above-mentioned steps, according to the product treatment grade of image and shooting quality grade, the image of mass data is constantly screened, thereby obtain the most applicable image that service is provided, solved in prior art, in the face of mass data, each processing while operating, inefficient problem.
Method of the present invention, according to following 3 aspect examination images:
(1) by quality preliminary screening: judge photographic quality grade and product treatment grade according to two-dimentional quality factor (photographic quality grade and product treatment grade), abandon the problematic data of quality, quality grade is poor especially, substantially can not provide the data of service directly migrate to offline storage or directly delete.
(2) select in mass ratio excellent: (photographic quality grade or product treatment grade) mass ratio at the same level selects excellent, and the data of like products grade, filter out the data that quality grade is high service is provided, by the low Data Migration of quality grade to offline storage.
(3) by quality selected deposit excellent: from photographic quality grade, these two dimensions of product treatment grade, carry out that quality is selected deposits excellently,, when there is many parts of image datas of homogeneous photography, the rudimentary image data of homogeneous photography moved in offline storage; When there being the image data of more than 2 parts same data type, retain the higher data of quality scale; When quality scale is identical, preserve the nearer data of photography time.
Below by a detailed embodiment, concrete transition process is described, method of the present invention is repeatedly screened mass data, with remote sensing satellite data instance, the remote sensing images of taking for same target, need to take repeatedly, can form mass data like this, such as map, atmosphere, starry sky etc., in use, data volume is larger for these view data, if adopt method of the present invention, can improve the treatment effeciency in use procedure.The process of processing by method of the present invention, referring to Fig. 2, comprising:
S21: in shared memory, the grade of judgement image data;
Photographic quality grade is to produce qualitative attribute during according to Aerial Photography, and the quality of image is carried out to classification judgement; Access each image data as the attribute of shooting quality, it is one of following that described attribute at least comprises: resolution, size, pixel quantity, color, tone, saturation degree, contrast and brightness; Also can comprise shelter (cloud amount etc.), pixel integrality (error code etc.) etc.;
According between the attribute area of setting with the corresponding relation of photographic quality grade, determine the photographic quality grade of each image data; The quality of data that quality of data specific mass grade that quality grade is high is low is good;
The described processing procedure by image data determines that its product treatment grade comprises:
Determine the operation of described processing procedure, it is one of following that described operation comprises: image conversion, encoding and decoding, enhancing, restore, cut apart, the running time;
According to the quantity of operation and the corresponding relation of product treatment grade set, determine the product treatment grade of each image data.
Above-mentioned these grades, can set voluntarily according to the user demand of data, if need the output image of better effects, and parameter corresponding to adjustable height grade.
Shared memory is for depositing the primary data without any judgement that external system deposits in.Working storage is used for depositing through preliminary sieve to be chosen, and meets ageing requirement, enters in the recent period the data of system.Lasting memory block is for depositing data top-quality, high level, demand for services amount maximum.The data that offline storage district is poor especially by off-line media storage quality, be not used in service substantially.This structure dependence Data Transference Technology is carried out ensure quality, and good high priority data is stored on the storage medium that service ability is strong.So just greatly improve data acquisition service efficiency.
S22: judge whether to meet according to the product treatment grade after pickup quality grade and image processing, if met, carry out S23, if do not met, carry out S27, image data is stored to offline storage district.
The image data of selecting described photographic quality grade and described product treatment grade simultaneously to meet threshold value is stored to working storage;
The preliminary sieve of data is chosen the data in shared memory is carried out to anticipation, quality is poor especially, substantially can not directly migrate to offline storage for the data of serving, simultaneously by other Data Migrations in working storage.
S23: the image data that satisfy hierarchy is required stores working storage into.
S24: in working storage, image data at the same level is compared; According to comparative result, carry out S25, select optimum image data and store product memory block into; Or S27;
In described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select optimum image data, be stored to product memory block;
For example, for the image data of satellite or monitoring, may be at synchronization, there are many parts of a plurality of images of repeatedly same target being taken, can select optimum image data according to according to shooting time, photographic quality grade and product quality grade, be stored to product memory block;
S25: be stored to product memory block by selecting optimum image data;
Data are relatively selected excellent in the grade comparison rule in sequential or S24, select image data high-grade or that the time is nearest, data are moved to product memory block from working storage, in this process, if have Data Migration that product hierarchy is high to product memory block, rudimentary product corresponding in product memory block is moved in offline storage.
S26: judge whether to have optimum image data in product memory block, if had, carry out S25, otherwise carry out S27.
Data are selected deposits excellent to be that the data in product memory block are carried out to selected arrangement, to retain the data of photographic quality grade and product treatment grade optimum so that service to be provided lastingly.In the situation of the term harmonizations such as image geographic range, when there is many parts of image datas of homogeneous photography, identical photographic quality grade, moves to the product treatment grade image data of homogeneous photography in offline storage; When there is the image data of 2 parts of (containing) above same data type, identical product quality grade, retains higher grade of photographic quality data.Certainly also can two grade colleagues consider, also can only compare one.
By above implementation step, utilization is towards the magnanimity image data moving method of quality, can realize one towards the mass data migratory system of quality, solve current existing magnanimity image data life cycle management problem, improve the use value of services of audio and video products data.
In above-mentioned each memory block, when image data is operated, possible this image data is taken by other processes, as access, copy, shearing etc., for avoiding operating collision, before the current image data of operation, by setting up the label of corresponding described current image data, prevent operating collision.
Comprise:
Before the current image data of operation, judge under its place catalogue whether have empty file of the same name;
If there is shut-down operation;
If there is no, create the empty file of the same name with it, and operate this image data; After EO, delete the empty file described of the same name creating.
Because data all relate to the deletion action of data on original memory location in the migration between each memory block, therefore may with other data access person, such as data output etc., produce access conflict.Design a set of transparent Data Migration access isolating interface.This interface is mainly to carry out the access of isolating exterior service processes to the data file of moving by data product being labelled, deleted the mode of label, the error in data that may cause while avoiding other data access person simultaneously same data file to be carried out to read access operations.
Labelling is under the catalogue with data file peer, creates an empty file, and its title starts with data file name.Deleting label is exactly to delete the empty file creating while labelling before.When Data Migration service prepares a data file to carry out migration operation, first judge that whether this data file has been stamped label by other data accesses person, if this document is not stamped label, carries out migration operation; If stamped label, show to have background process using this data file, Data Migration just wouldn't carry out migration operation to this data file, treats when moving, to repeat next time aforesaid operations again.
Based on above logical design, realizing access interface provides each data access person to use, and guarantees to come each visitor transparent to data access, does not produce each other conflict.
Preferably, the migration operation process of above-mentioned each memory block, and non real-time carrying out, trigger the operation of described selection image data according to the memory capacity of the time interval or each memory block.Comprise:
The generation of migration task has two kinds of modes, and a kind of is to trigger by time control, and a kind of is to trigger by space management.Time control is set flip-flop as required, and capture trigger message, at special time, triggers migration task, and triggering message is issued to task control module.Space management carries out monitoring analysis to each disk array memory capacity, when the alarm of residue memory capacity, disk space information is issued to task control module, produces migration task.
Migration task control
Task control, after receiving message, builds migration task queue, the concurrent execution of scheduling migration task, and migration tasks carrying process is controlled.According to the message of receiving, data dispatching is just chosen task (screen shared memory to working storage) respectively, data are selected the migration tasks such as excellent task (screening of working storage to product memory block) and the selected task of data (product memory block self screening) in task control meeting.
For example, be about to carry out just choose task, and the memory capacity of product memory block is full, the selected priority of data is heightened, and carries out selected task.
Describe the workflow of the inventive method above in detail, the process of the workflow of the inventive method, also can be referring to the schematic diagram shown in Fig. 3, Fig. 4,
Fig. 3 is system assumption diagram of the present invention, and system comprises that magnanimity image data hierarchical storage management structure, Data Migration are controlled, Data Migration is processed and Data Migration access isolating interface.
Fig. 4 is the framework flow process of integral system of the present invention.
The present invention also provides a kind of magnanimity image data migratory system towards quality, comprising:
Shared region module for reading and writing, for being kept at shared memory by a plurality of image datas;
Grade module for determine its photographic quality grade by the shooting quality of each image data, is determined its product treatment grade by the processing procedure of image data simultaneously;
Workspace memory module, is stored to working storage for the image data of selecting described photographic quality grade and described product treatment grade to meet threshold value simultaneously;
Workspace screening module, in described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects optimum image data, is stored to product memory block;
Product zone screening module, in described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects and preserves optimum image data;
Output module, for using the image data of described product memory block, provides access.
Preferably, also comprise: offline storage module, for not meeting the image data of threshold value or non-optimum, is stored to offline storage district.
Preferably, also comprise, trigger module, for triggering the operation of described selection image data according to the memory capacity of the time interval or each memory block.
Preferably, also comprise: anti-collision module, for before the current image data of operation, prevents operating collision by setting up the label of corresponding described current image data.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. towards a magnanimity image data moving method for quality, it is characterized in that, comprising:
A plurality of image datas are kept to shared memory;
By the shooting quality of each image data, determine its photographic quality grade, by the processing procedure of image data, determine its product treatment grade simultaneously;
The image data of selecting described photographic quality grade and described product treatment grade simultaneously to meet threshold value is stored to working storage;
In described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select optimum image data, be stored to product memory block;
In described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, select and preserve optimum image data;
Use the image data in described product memory block, access is provided.
2. method according to claim 1, is characterized in that, will not meet the image data of threshold value or non-optimum, is stored to offline storage district.
3. method according to claim 1, is characterized in that, triggers the operation of described selection image data according to the memory capacity of the time interval or each memory block.
4. method according to claim 1, is characterized in that, also comprises: before the current image data of operation, by setting up the label of corresponding described current image data, prevent operating collision.
5. method according to claim 4, is characterized in that, the described label of setting up corresponding described current image data prevents that operating collision from comprising:
Before the current image data of operation, judge under its place catalogue whether have empty file of the same name;
If there is shut-down operation;
If there is no, create the empty file of the same name with it, and operate this image data; After EO, delete the empty file described of the same name creating.
6. method according to claim 1, is characterized in that, the described shooting quality by each image data determines that its photographic quality grade comprises:
Access each image data as the attribute of shooting quality, it is one of following that described attribute at least comprises: resolution, size, pixel quantity, color, tone, saturation degree, contrast and brightness;
According between the attribute area of setting with the corresponding relation of photographic quality grade, determine the photographic quality grade of each image data;
The described processing procedure by image data determines that its product treatment grade comprises:
Determine the operation of described processing procedure, it is one of following that described operation comprises: image conversion, encoding and decoding, enhancing, restore, cut apart, the running time;
According to the quantity of operation and the corresponding relation of product treatment grade set, determine the product treatment grade of each image data.
7. towards a magnanimity image data migratory system for quality, it is characterized in that, comprising:
Share module for reading and writing, for a plurality of image datas are kept to shared memory;
Grade module for determine its photographic quality grade by the shooting quality of each image data, is determined its product treatment grade by the processing procedure of image data simultaneously;
Work memory module, is stored to working storage for the image data of selecting described photographic quality grade and described product treatment grade to meet threshold value simultaneously;
Workspace screening module, in described working storage, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects optimum image data, is stored to product memory block;
Product zone screening module, in described product memory block, if same target exists a plurality of image datas of repeatedly taking, according to shooting time, photographic quality grade and product quality grade, selects and preserves optimum image data;
Output module, for using the image data of described product memory block, provides access.
8. system according to claim 7, is characterized in that, also comprises: offline storage module, for not meeting the image data of threshold value or non-optimum, is stored to offline storage district.
9. system according to claim 7, is characterized in that, also comprises, trigger module, for triggering the operation of described selection image data according to the memory capacity of the time interval or each memory block.
10. method according to claim 7, is characterized in that, also comprises: anti-collision module, for before the current image data of operation, prevents operating collision by setting up the label of corresponding described current image data.
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